Today we are going to create a strobe light for the tips of the wings of an rc airplane using a 555 timer (NE 555 or lm 555 IC) this circuit is very easy to make with few components and most ...

Phase-coherent lasers are crucial for many precision tasks, including timekeeping. Here on Earth the most stable optical ...

Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...

Don't want a traditional alarm clock? Your Android phone can show the time while it charges. Here's how to set it up.